Sony TRINITRON KV-27TW77 Service Manual page 54

1 2 3 4 5 6
(3) Schematic Diagram of UA Board
A
B UA Board IC401 M5470AP
E
F
GND OUT Vec INPUT 3
H
|
INPUT | SWITCH } INPUT 2 SWITCH 2
J UA Board IC404 MM1118XFF
GND OUT Vec INPUT 3
K
L
INPUT 1 SWITCH 1 INPUT 2 SWITCH 2
M e UA BOARD WAVEFORMS
B-SS 4442KU. . >-UA<WAVELIST>
N
O
2.6 Vp-p ( H )
P
—73—
AUBIO OUT
(VARIABLE/F IX)
10 11
A/V SW
A/V INPUT
A/V QUTPUT
12
TO H BOARA
CNIS4
13
CN141
SP
23 24 25 26
CHAI pb
14 15 16 17 18 19 20 21 22
sin} |>
a tal) by
sis] Is 2| |2 3 = 2/3/53 a s\n CNI46 TO P BOARB
slg} |S leo o> al JelR
oF CNI50
ral tra i irl efi) fy} oil] WA] Cloln
ENDS ~ Pfs jmo]<|in] of [ofa SIH[S]e] S212 hs [2]
Cnn MA rm}? T at!
a a
Pup4oe
"5
ite
HE 4
JR4IS
+CHIP
Tk
: Fate adh
| |
--9——_)
+
C407
1
_5}¢ + 8 ly |
407 hi ROTOESB % BE 4' RT pRovecT iD,
540g patisp Lees
Brg! 01" BROTECT [|
JR419 C408 =
0 22
=CHIP 2sy
= (S)
1 0ESB
BT Peas [[ |
:CHIP [| f+ 8 a
3
"ee
rT
A446 , r
us7 | Ne
e) [Ee
27
434
100p
APD 4
C-BLOCK
CHROMA
ANT-SW2
—74-—
MTS SAP
CN147
TO A BOARD 327
CNI52 ?BTOB-S
PTV R [14]
P TV_L [ra
ae) p_____£ [3
5 BAT 5 CLK
C BET OUT
MUTE
P BET OUT [15]
S/aINISTS[RTRTS [818] [5/8]
C A MUTE
STBY 9V
C_ANT SW
uw >>| >) >flyl
LO]i9 |] OLN
NN —
—75—
B-594447<U..>-UA.
AR L
TO M BOARS
CN137
ins oe: Sin, aoe enh Dimi fe heii eee Ss te
—76—
28 29